#include <cairo.h>
#include <gtk/gtk.h>

static gboolean
on_expose_event(GtkWidget      *widget,
                  GdkEventExpose *event,
                  gpointer        data)
{
  cairo_t *cr;

  cr = gdk_cairo_create(widget->window);

  cairo_set_source_rgb(cr, 0, 0, 0);
  cairo_select_font_face(cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
      CAIRO_FONT_WEIGHT_NORMAL);
  cairo_set_font_size(cr, 40.0);

  cairo_move_to(cr, 10.0, 50.0);
  cairo_show_text(cr, "Disziplin ist Macht.");

  cairo_destroy(cr);

  return FALSE;
}


int
main (int argc, char *argv[])
{

  GtkWidget *window;

  gtk_init(&argc, &argv);

  window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

  g_signal_connect(window, "expose-event",
                    G_CALLBACK (on_expose_event), NULL);
  g_signal_connect(window, "destroy",
                    G_CALLBACK (gtk_main_quit), NULL);

  gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
  gtk_window_set_default_size(GTK_WINDOW(window), 400, 90); 
  gtk_widget_set_app_paintable(window, TRUE);

  gtk_widget_show_all(window);

  gtk_main();

  return 0;
}
